<!DOCTYPE html>
<html lang="zh">
<head>
    <meta charset="UTF-8">
    <title>
        {% block title %}
            {# 网页标题 #}
        {% endblock %}
    </title>

    {% block head %}
        {# 网页所引用的样式等静态资源 #}
    {% endblock %}
</head>
<body>
{% block content %}
    {# 网页内容 #}
{% endblock %}

{% block script %}
    {# 网页所引用的js资源 #}
{% endblock %}
</body>
</html>